This is the class in question:

class sge (
  $cluster = 'cluster',
  $type ,
  $version = 'ogs2011.11',
  $snp,
  $ngs,
  $customer,
  $reserved_cores = 0,
  $python = '',
  $admin = 'puppet@example.com',
  $project = 'cluster'
) {

  include sge::execd, sge::package

}

In the database was a version with only four of those parameters. Importing does not add the new ones.

Interestingly enough, updating from the webinterface actually did update the parameters.

any chance you are not running in the same RAILS_ENV ?

Sadly, there is not much chance for that:

-bash-4.1$ RAILS_ENV=production rake puppet:import:puppet_classes
Evaluating possible changes to your installation
Scheduled changes to your environment
Create/update environments
Delete environments
production     : Remove environment

Proceed with these modifications? <yes|no> no
-bash-4.1$ cat config/database.yml 
# SQLite version 3.x
#   gem install sqlite3
development:
  adapter: sqlite3
  database: db/development.sqlite3
  pool: 5
  timeout: 5000

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  adapter: sqlite3
  database: db/test.sqlite3
  pool: 5
  timeout: 5000

production:
  adapter: postgresql
  database: foreman
  pool: 5
  timeout: 5000
-bash-4.1$ ls db/
migrate  schema.rb
-bash-4.1$ 

Again, I did changes to a class in the modules, which was detected by the foreman proxy, but not by the rake task.

Something fishy is happening though:

-bash-4.1$ RAILS_ENV=production strace -e file -f -s=100 rake puppet:import:puppet_classes[batch] 2>&1 | grep /srv/puppet
[pid 28181] stat("/srv/puppet/environments/production/modules", 0x7fff0ef5dd80) = -1 ENOENT (No such file or directory)
-bash-4.1$ 

All our modules are located in /src/puppet/environments/* and I'd have expected that strace to turn up more accesses to that location.

I've retested this on 1.1stable with the patch from #2067 and this problem did not manifest itself again.

From my side, this can be closed.